List of United States senators from Pennsylvania
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Pennsylvania Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, ...
ratified the United States Constitution on December 12, 1787, and elects its
U.S. senators The United States Senate is the upper chamber of the United States Congress, with the House of Representatives being the lower chamber. Together they compose the national bicameral legislature of the United States. The composition and powe ...
to Class 1 and Class 3. Officeholders are popularly elected, for a six-year term, beginning January 3. Elections are held the first Tuesday after November 1. Before 1914, they were chosen by the Pennsylvania General Assembly; before 1935, their terms began March 4. The state's current U.S. senators are
Democrat Democrat, Democrats, or Democratic may refer to: Politics *A proponent of democracy, or democratic government; a form of government involving rule by the people. *A member of a Democratic Party: **Democratic Party (United States) (D) **Democratic ...
Bob Casey Jr. Robert Patrick Casey Jr. (born April 13, 1960) is an American lawyer and politician serving as the senior United States senator from Pennsylvania, a seat he has held since 2007. A member of the Democratic Party, Casey previously served as Penn ...
(since 2007) and
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
Pat Toomey Patrick Joseph Toomey Jr. (born November 17, 1961) is an American businessman and politician serving as the junior United States senator for Pennsylvania since 2011. A member of the Republican Party, he served three terms as the U.S. representa ...
(since 2011), making it one of seven states to have a split United States Senate delegation.
Arlen Specter Arlen Specter (February 12, 1930 – October 14, 2012) was an American lawyer, author and politician who served as a United States Senator from Pennsylvania from 1981 to 2011. Specter was a Democrat from 1951 to 1965, then a Republican fr ...
was Pennsylvania's longest-serving senator (1981–2011).


List of senators

, - style="height:2em" ! 1 , align=left ,
William Maclay , , Anti-
Admin.
, nowrap , Mar 4, 1789 –
Mar 3, 1791 , Elected in 1788.Lost re-election. , 1 , , rowspan=6 , 1 , rowspan=6 , Elected in 1788.Retired. , rowspan=6 nowrap , Mar 4, 1789 –
Mar 3, 1795 , rowspan=6 , Pro-
Admin.
, rowspan=6 align=right ,
Robert Morris ! rowspan=6 , 1 , - style="height:2em" , colspan=3 , ''Vacant'' , nowrap , Mar 4, 1791 –
Dec 1, 1793 , Legislature failed to elect. , rowspan=6 , 2 , rowspan=2 , - style="height:2em" ! rowspan=2 , 2 , rowspan=2 align=left ,
Albert Gallatin Abraham Alfonse Albert Gallatin (January 29, 1761 – August 12, 1849) was a Genevan–American politician, diplomat, ethnologist and linguist. Often described as "America's Swiss Founding Father", he was a leading figure in the early years o ...
, rowspan=2 , Anti-
Admin.
, rowspan=2 nowrap , Dec 2, 1793 –
Feb 28, 1794 , rowspan=2 , Elected to finish the vacant term.Election voided. , - style="height:2em" , rowspan=3 , - style="height:2em" , colspan=3 , ''Vacant'' , nowrap , Mar 1, 1794 –
Apr 23, 1794 ,   , - style="height:2em" ! rowspan=7 , 3 , rowspan=7 align=left ,
James Ross , , Pro-
Admin.
, rowspan=7 nowrap , Apr 24, 1794 –
Mar 3, 1803 , rowspan=2 , Elected to finish Gallatin's term. , - style="height:2em" , rowspan=6 , Federalist , , rowspan=3 , 2 , rowspan=3 , Elected in 1795.Retired. , rowspan=3 nowrap , Mar 4, 1795 –
Mar 3, 1801 , rowspan=3 , Federalist , rowspan=3 align=right ,
William Bingham ! rowspan=3 , 2 , - style="height:2em" , rowspan=5 , Re-elected in 1797.Retired. , rowspan=5 , 3 , , - style="height:2em" , , - style="height:2em" , rowspan=3 , rowspan=5 , 3 , Elected in 1801.Resigned to become Supervisor of Revenue of Pennsylvania. , nowrap , Mar 4, 1801 –
Jun 30, 1801 , , Democratic-
Republican
, align=right ,
Peter Muhlenberg John Peter Gabriel Muhlenberg (October 1, 1746October 1, 1807) was an American clergyman, Continental Army soldier during the American Revolutionary War, and political figure in the newly independent United States. A Lutheran minister, he serve ...
! 3 , - style="height:2em" ,   , nowrap , Jun 30, 1801 –
Dec 17, 1801 , colspan=3 , ''Vacant'' , - style="height:2em" , rowspan=3 , Elected to finish Muhlenberg's term.Retired. , rowspan=3 nowrap , Dec 17, 1801 –
Mar 3, 1807 , rowspan=3 , Democratic-
Republican
, rowspan=3 align=right ,
George Logan ! rowspan=3 , 4 , - style="height:2em" ! rowspan=3 , 4 , rowspan=3 align=left ,
Samuel Maclay Samuel Maclay (June 17, 1741October 5, 1811) was an American surveyor, farmer, and politician from Union County, Pennsylvania. He served in the state legislature and represented Pennsylvania in both the U.S. House and the United States Senate. ...
, rowspan=3 , Democratic-
Republican
, rowspan=3 nowrap , Mar 4, 1803 –
Jan 4, 1809 , rowspan=3 , Elected in 1802.Resigned. , rowspan=5 , 4 , , - style="height:2em" , , - style="height:2em" , rowspan=3 , rowspan=5 , 4 , rowspan=5 , Elected in 1806.Retired. , rowspan=5 nowrap , Mar 4, 1807 –
Mar 3, 1813 , rowspan=5 , Democratic-
Republican
, rowspan=5 align=right ,
Andrew Gregg Andrew Gregg (June 10, 1755May 20, 1835) was an American politician. A Democratic-Republican, he served as a United States Senator for Pennsylvania from 1807 until 1813. Prior to that, he served as a U.S. Representative from 1791 until 1807. Fr ...
! rowspan=5 , 5 , - style="height:2em" , colspan=3 , ''Vacant'' , nowrap , Jan 4, 1809 –
Jan 9, 1809 , Vacant , - style="height:2em" ! rowspan=4 , 5 , rowspan=4 align=left ,
Michael Leib Michael Leib (January 8, 1760December 22, 1822) was an American physician and politician from Philadelphia. He served as a surgeon in the Philadelphia Militia during the American Revolutionary War. He served as a Democratic-Republican member of t ...
, rowspan=4 , Democratic-
Republican
, rowspan=4 nowrap , Jan 9, 1809 –
Feb 14, 1814 , Elected in 1809 to finish Maclay's term, having already been elected to the next term. , - style="height:2em" , rowspan=3 , Elected in 1808.Resigned to become Postmaster of Philadelphia. , rowspan=5 , 5 , , - style="height:2em" , , - style="height:2em" , rowspan=3 , rowspan=5 , 5 , rowspan=5 , Elected in 1812., citing Journal of the Pennsylvania State Senate, 1812, pp. 41–43.Retired. , rowspan=5 nowrap , Mar 4, 1813 –
Mar 3, 1819 , rowspan=5 , Democratic-
Republican
, rowspan=5 align=right ,
Abner Lacock Abner Lacock (July 9, 1770April 12, 1837) was an American surveyor, civil engineer, and politician from Rochester, Pennsylvania. He served in both houses in the state legislature and represented Pennsylvania in both the U.S. House and Senate. ...
! rowspan=5 , 6 , - style="height:2em" , colspan=3 , ''Vacant'' , nowrap , Feb 14, 1814 –
Feb 24, 1814 , , - style="height:2em" ! rowspan=4 , 6 , rowspan=4 align=left ,
Jonathan Roberts , rowspan=4 , Democratic-
Republican
, rowspan=4 nowrap , Feb 24, 1814 –
Mar 3, 1821 , Elected to finish Leib's term. , - style="height:2em" , rowspan=3 , Re-elected in late 1814. , rowspan=3 , 6 , , - style="height:2em" , , - style="height:2em" , , rowspan=4 , 6 , rowspan=4 , Elected in 1818.Retired. , rowspan=4 nowrap , Mar 4, 1819 –
Mar 3, 1825 , rowspan=4 , Democratic-
Republican
, rowspan=4 align=right ,
Walter Lowrie ! rowspan=4 , 7 , - style="height:2em" , colspan=3 , ''Vacant'' , nowrap , Mar 4, 1821 –
Dec 10, 1821 , Legislature failed to elect. , rowspan=4 , 7 , rowspan=2 , - style="height:2em" ! rowspan=3 , 7 , rowspan=3 align=left ,
William Findlay , rowspan=2 , Democratic-
Republican
, rowspan=3 nowrap , Dec 10, 1821 –
Mar 3, 1827 , rowspan=3 , Elected late in 1821.Retired. , - style="height:2em" , , - style="height:2em" , , Jacksonian , , rowspan=3 , 7 , rowspan=3 , Elected in 1825.Lost re-election. , rowspan=3 nowrap , Mar 4, 1825 –
Mar 3, 1831 , rowspan=3 , National
Republican
, rowspan=3 align=right ,
William Marks ! rowspan=3 , 8 , - style="height:2em" ! rowspan=3 , 8 , rowspan=3 align=left ,
Isaac D. Barnard , rowspan=3 , Jacksonian , rowspan=3 nowrap , Mar 4, 1827 –
Dec 6, 1831 , rowspan=3 , Elected in 1826.Resigned to due ill health. , rowspan=5 , 8 , , - style="height:2em" , , - style="height:2em" , rowspan=3 , rowspan=8 , 8 , rowspan=5 , Elected in 1830.Resigned to become U.S. Minister to Russia. , rowspan=5 nowrap , Mar 4, 1831 –
Jun 30, 1834 , rowspan=5 , Jacksonian , rowspan=5 align=right ,
William Wilkins ! rowspan=5 , 9 , - style="height:2em" , colspan=3 , ''Vacant'' , nowrap , Dec 6, 1831 –
Dec 13, 1831 ,   , - style="height:2em" ! 9 , align=left ,
George M. Dallas George Mifflin Dallas (July 10, 1792 – December 31, 1864) was an American politician and diplomat who served as mayor of Philadelphia from 1828 to 1829, the 11th vice president of the United States from 1845 to 1849, and U.S. Minister to the ...
, , Jacksonian , nowrap , Dec 13, 1831 –
Mar 3, 1833 , Elected to finish Barnard's term.Retired. , - style="height:2em" , colspan=3 , ''Vacant'' , nowrap , Mar 4, 1833 –
Dec 7, 1833 , Legislature failed to elect. , rowspan=6 , 9 , rowspan=4 , - style="height:2em" ! rowspan=5 , 10 , rowspan=5 align=left ,
Samuel McKean Samuel McKean (April 7, 1787December 14, 1841) was an American merchant and politician from Burlington, Pennsylvania, who served as a Democratic member of the U.S. Senate for Pennsylvania from 1833 to 1839 and of the U.S. House of Representati ...
, rowspan=4 , Jacksonian , rowspan=5 nowrap , Dec 7, 1833 –
Mar 3, 1839 , rowspan=5 , Elected late in 1833. , - style="height:2em" ,   , nowrap , Jun 30, 1834 –
Dec 6, 1834 , colspan=3 , ''Vacant'' , - style="height:2em" , rowspan=2 , Elected to finish Wilkins's term. , rowspan=8 nowrap , Dec 6, 1834 –
Mar 5, 1845 , rowspan=2 , Jacksonian , rowspan=8 align=right ,
James Buchanan ! rowspan=8 , 10 , - style="height:2em" , , - style="height:2em" , , Democratic , , rowspan=4 , 9 , rowspan=4 , Re-elected in 1836. , rowspan=6 , Democratic , - style="height:2em" , colspan=3 , ''Vacant'' , nowrap , Mar 4, 1839 –
Jan 14, 1840 , Legislature failed to elect. , rowspan=4 , 10 , rowspan=2 , - style="height:2em" ! rowspan=8 , 11 , rowspan=8 align=left ,
Daniel Sturgeon Daniel Sturgeon (October 27, 1789July 3, 1878) was an American physician, banker and Democratic party politician from Uniontown, Pennsylvania. He served in both houses of the state legislature and represented Pennsylvania in the United States ...
, rowspan=8 , Democratic , rowspan=8 nowrap , Jan 14, 1840 –
Mar 3, 1851 , rowspan=3 , Elected late in 1840. , - style="height:2em" , , - style="height:2em" , , rowspan=5 , 10 , rowspan=2 , Re-elected in 1843.Resigned to become
U.S. Secretary of State The United States secretary of state is a member of the executive branch of the federal government of the United States and the head of the U.S. Department of State. The office holder is one of the highest ranking members of the president's Ca ...
. , - style="height:2em" , rowspan=5 , Re-elected in 1845.Retired. , rowspan=5 , 11 , rowspan=3 , - style="height:2em" ,   , nowrap , Mar 5, 1845 –
Mar 13, 1845 , colspan=3 , ''Vacant'' , - style="height:2em" , rowspan=2 , Elected in 1845.Retired. , rowspan=2 nowrap , Mar 13, 1845 –
Mar 3, 1849 , rowspan=2 , Democratic , rowspan=2 align=right ,
Simon Cameron Simon Cameron (March 8, 1799June 26, 1889) was an American businessman and politician who represented Pennsylvania in the United States Senate and served as United States Secretary of War under President Abraham Lincoln at the start of the Americ ...
! rowspan=2 , 11 , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 11 , rowspan=3 , Elected in 1849. , rowspan=3 nowrap , Mar 4, 1849 –
Mar 3, 1855 , rowspan=3 , Whig , rowspan=3 align=right ,
James Cooper ! rowspan=3 , 12 , - style="height:2em" ! rowspan=4 , 12 , rowspan=4 align=left ,
Richard Brodhead Richard Brodhead (January 5, 1811September 16, 1863) was an American lawyer and politician from Easton, Pennsylvania. He represented Pennsylvania in both the U.S. House (1843 to 1849) and Senate (1851 to 1857). He was the father of U.S. Repres ...
, rowspan=4 , Democratic , rowspan=4 nowrap , Mar 4, 1851 –
Mar 3, 1857 , rowspan=4 , Elected in 1851. , rowspan=4 , 12 , , - style="height:2em" , , - style="height:2em" , rowspan=2 , rowspan=4 , 12 , Legislature failed to elect. , nowrap , Mar 4, 1855 –
Jan 14, 1856 , colspan=3 , ''Vacant'' , - style="height:2em" , rowspan=3 , Elected late in 1856.Retired. , rowspan=3 nowrap , Jan 14, 1856 –
Mar 3, 1861 , rowspan=3 , Democratic , rowspan=3 align=right ,
William Bigler ! rowspan=3 , 13 , - style="height:2em" ! rowspan=2 , 13 , rowspan=2 align=left ,
Simon Cameron Simon Cameron (March 8, 1799June 26, 1889) was an American businessman and politician who represented Pennsylvania in the United States Senate and served as United States Secretary of War under President Abraham Lincoln at the start of the Americ ...
, rowspan=2 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=2 nowrap , Mar 4, 1857 –
Mar 4, 1861 , rowspan=2 , Elected in 1857.Resigned to become
U.S. Secretary of War The secretary of war was a member of the U.S. president's Cabinet, beginning with George Washington's administration. A similar position, called either "Secretary at War" or "Secretary of War", had been appointed to serve the Congress of th ...
. , rowspan=4 , 13 , , - style="height:2em" , , - style="height:2em" , colspan=3 , ''Vacant'' , nowrap , Mar 4, 1861 –
Mar 14, 1861 ,   , rowspan=2 , rowspan=4 , 13 , rowspan=4 , Elected in 1861.Lost re-election. , rowspan=4 nowrap , Mar 4, 1861 –
Mar 3, 1867 , rowspan=4 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=4 align=right ,
Edgar Cowan ! rowspan=4 , 14 , - style="height:2em" ! 14 , align=left ,
David Wilmot David Wilmot (January 20, 1814 – March 16, 1868) was an American politician and judge. He served as Representative and a Senator for Pennsylvania and as a judge of the Court of Claims. He is best known for being the prime sponsor and epon ...
, ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, nowrap , Mar 14, 1861 –
Mar 3, 1863 , Elected in 1861 to finish Cameron's term.Retired. , - style="height:2em" ! rowspan=3 , 15 , rowspan=3 align=left ,
Charles R. Buckalew , rowspan=3 , Democratic , rowspan=3 nowrap , Mar 4, 1863 –
Mar 3, 1869 , rowspan=3 , Elected in 1863. , rowspan=3 , 14 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 14 , rowspan=3 , Elected in 1867. , rowspan=6 nowrap , Mar 4, 1867 –
Mar 12, 1877 , rowspan=6 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=6 align=right ,
Simon Cameron Simon Cameron (March 8, 1799June 26, 1889) was an American businessman and politician who represented Pennsylvania in the United States Senate and served as United States Secretary of War under President Abraham Lincoln at the start of the Americ ...
! rowspan=6 , 15 , - style="height:2em" ! rowspan=3 , 16 , rowspan=3 align=left ,
John Scott , rowspan=3 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=3 nowrap , Mar 4, 1869 –
Mar 3, 1875 , rowspan=3 , Elected in 1869.Retired. , rowspan=3 , 15 , , - style="height:2em" , , - style="height:2em" , , rowspan=5 , 15 , rowspan=3 , Re-elected in 1873.Resigned. , - style="height:2em" ! rowspan=5 , 17 , rowspan=5 align=left ,
William A. Wallace , rowspan=5 , Democratic , rowspan=5 nowrap , Mar 4, 1875 –
Mar 3, 1881 , rowspan=5 , Elected in 1875.Lost re-election. , rowspan=5 , 16 , , - style="height:2em" , rowspan=3 , - style="height:2em" ,   , nowrap , Mar 12, 1877 –
Mar 20, 1877 , colspan=3 , ''Vacant'' , - style="height:2em" , Elected in 1877 to finish his father's term. , rowspan=10 nowrap , Mar 20, 1877 –
Mar 3, 1897 , rowspan=10 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=10 align=right ,
J. Donald Cameron James Donald Cameron (May 14, 1833 – August 30, 1918) was an American politician from Pennsylvania who served as Secretary of War under President Ulysses S. Grant and in the United States Senate for nearly twenty years. In May, 1876 Cameron was ...
! rowspan=10 , 16 , - style="height:2em" , , rowspan=3 , 16 , rowspan=3 , Re-elected in 1879. , - style="height:2em" ! rowspan=3 , 18 , rowspan=3 align=left ,
John I. Mitchell John Inscho Mitchell (July 28, 1838August 20, 1907) was an American lawyer, jurist, and Republican party politician from Tioga County, Pennsylvania. He served in the state legislature and represented Pennsylvania in both the U.S. House and Se ...
, rowspan=3 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=3 nowrap , Mar 4, 1881 –
Mar 3, 1887 , rowspan=3 , Elected in 1881. , rowspan=3 , 17 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 17 , rowspan=3 , Re-elected in 1885. , - style="height:2em" ! rowspan=10 , 19 , rowspan=6 align=left ,
Matthew Quay Matthew Stanley "Matt" Quay (September 30, 1833May 28, 1904) was an American politician of the Republican Party who represented Pennsylvania in the United States Senate from 1887 until 1899 and from 1901 until his death in 1904. Quay's control ...
, rowspan=6 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=6 nowrap , Mar 4, 1887 –
Mar 3, 1899 , rowspan=3 , Elected in early 1887. , rowspan=3 , 18 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 18 , rowspan=3 , Re-elected in 1891.Retired. , - style="height:2em" , rowspan=3 , Re-elected in 1893.Legislature failed to re-elect. , rowspan=3 , 19 , , - style="height:2em" , , - style="height:2em" , , rowspan=4 , 19 , rowspan=4 , Elected in 1897. , rowspan=18 nowrap , Mar 4, 1897 –
Dec 31, 1921 , rowspan=18 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=18 align=right ,
Boies Penrose Boies Penrose (November 1, 1860 – December 31, 1921) was an American lawyer and Republican politician from Philadelphia, Pennsylvania. After serving in both houses of the Pennsylvania legislature, he represented Pennsylvania in the United ...
! rowspan=18 , 17 , - style="height:2em" , colspan=2 , ''Vacant'' , nowrap , Mar 4, 1899 –
Jan 16, 1901 , Quay was appointed to continue the term, but the Senate rejected his appointment. , rowspan=5 , 20 , rowspan=2 , - style="height:2em" , rowspan=3 align=left ,
Matthew Quay Matthew Stanley "Matt" Quay (September 30, 1833May 28, 1904) was an American politician of the Republican Party who represented Pennsylvania in the United States Senate from 1887 until 1899 and from 1901 until his death in 1904. Quay's control ...
, rowspan=3 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=3 nowrap , Jan 16, 1901 –
May 28, 1904 , rowspan=3 , Elected late in 1901.Died. , - style="height:2em" , , - style="height:2em" , rowspan=2 , rowspan=4 , 20 , rowspan=4 , Re-elected in 1903. , - style="height:2em" ! rowspan=3 , 20 , rowspan=3 align=left ,
Philander C. Knox Philander Chase Knox (May 6, 1853October 12, 1921) was an American lawyer, bank director and politician. A member of the Republican Party, Knox served in the Cabinet of three different presidents and represented Pennsylvania in the United States ...
, rowspan=3 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=3 nowrap , Jun 10, 1904 –
Mar 3, 1909 , Appointed to continue Quay's term. Elected in 1905 to finish Quay's term. , - style="height:2em" , rowspan=2 , Re-elected in 1905.Resigned to become
U.S. Secretary of State The United States secretary of state is a member of the executive branch of the federal government of the United States and the head of the U.S. Department of State. The office holder is one of the highest ranking members of the president's Ca ...
. , rowspan=4 , 21 , , - style="height:2em" , , - style="height:2em" , colspan=3 , ''Vacant'' , nowrap , Mar 4, 1909 –
Mar 17, 1909 ,   , rowspan=2 , rowspan=4 , 21 , rowspan=4 , Re-elected in 1909. , - style="height:2em" ! rowspan=4 , 21 , rowspan=4 align=left ,
George T. Oliver , rowspan=4 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=4 nowrap , Mar 17, 1909 –
Mar 3, 1917 , Elected to finish Knox's term , - style="height:2em" , rowspan=3 , Re-elected in 1911.Retired. , rowspan=3 , 22 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 22 , rowspan=3 , Re-elected in 1914. , - style="height:2em" ! rowspan=3 , 22 , rowspan=3 align=left ,
Philander C. Knox Philander Chase Knox (May 6, 1853October 12, 1921) was an American lawyer, bank director and politician. A member of the Republican Party, Knox served in the Cabinet of three different presidents and represented Pennsylvania in the United States ...
, rowspan=3 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=3 nowrap , Mar 4, 1917 –
Oct 12, 1921 , rowspan=3 , Elected in 1916.Died. , rowspan=9 , 23 , , - style="height:2em" , , - style="height:2em" , rowspan=7 , rowspan=9 , 23 , rowspan=3 , Re-elected in 1920.Died. , - style="height:2em" , colspan=3 , ''Vacant'' , nowrap , Oct 12, 1921 –
Oct 24, 1921 ,   , - style="height:2em" ! rowspan=3 , 23 , rowspan=3 align=left ,
William E. Crow , rowspan=3 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=3 nowrap , Oct 24, 1921 –
Aug 2, 1922 , rowspan=3 , Appointed to continue Knox's term.Died. , - style="height:2em" ,   , nowrap , Dec 31, 1921 –
Jan 9, 1922 , colspan=3 , ''Vacant'' , - style="height:2em" , rowspan=5 , Appointed to continue Penrose's term. Elected to finish Penrose's term.Lost renomination. , rowspan=5 nowrap , Jan 9, 1922 –
Mar 3, 1927 , rowspan=5 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=5 align=right ,
George W. Pepper ! rowspan=5 , 18 , - style="height:2em" , colspan=3 , ''Vacant'' , nowrap , Aug 2, 1922 –
Aug 8, 1922 ,   , - style="height:2em" ! rowspan=9 , 24 , rowspan=9 align=left ,
David A. Reed , rowspan=9 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=9 nowrap , Aug 8, 1922 –
Jan 3, 1935 , Appointed to continue Knox's term. Elected to finish Knox's term. , - style="height:2em" , rowspan=3 , Elected in 1922. , rowspan=3 , 24 , , - style="height:2em" , , - style="height:2em" , , rowspan=5 , 24 , rowspan=2 ,
William Scott Vare William Scott Vare (December 24, 1867August 7, 1934) was an American politician from Pennsylvania who served as a Republican member of the United States House of Representatives for Pennsylvania's 1st congressional district from 1912 to 1927. ...
(R) was elected in 1926, but the Governor refused to certify the election and the Senate refused to qualify him. , rowspan=2 nowrap , Mar 4, 1927 –
Dec 9, 1929 , rowspan=2 colspan=3 , ''Vacant'' , - style="height:2em" , rowspan=5 , Re-elected in 1928.Lost re-election. , rowspan=5 , 25 , rowspan=3 , - style="height:2em" , Appointed to continue Vare's term.Lost nomination to finish Vare's term. , nowrap , Dec 11, 1929 –
Dec 1, 1930 , ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, align=right ,
Joseph R. Grundy Joseph Ridgway Grundy (January 13, 1863March 3, 1961) was an American textile manufacturer and Republican Party (United States), Republican Party politician from Bristol, Pennsylvania. He represented Pennsylvania in the United States Senate. B ...
! 19 , - style="height:2em" , rowspan=2 , Elected in 1930 to finish Vare's term , rowspan=8 nowrap , Dec 2, 1930 –
Jan 3, 1945 , rowspan=8 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=8 align=right ,
James J. Davis ! rowspan=8 , 20 , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 25 , rowspan=3 , Re-elected in 1932. , - style="height:2em" ! rowspan=6 , 25 , rowspan=6 align=left ,
Joe Guffey , rowspan=6 , Democratic , rowspan=6 nowrap , Jan 3, 1935 –
Jan 3, 1947 , rowspan=3 , Elected in 1934. , rowspan=3 , 26 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 26 , rowspan=3 , Re-elected in 1938.Lost re-election. , - style="height:2em" , rowspan=3 , Re-elected in 1940.Lost re-election. , rowspan=3 , 27 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 27 , rowspan=3 , Elected in 1944.Lost re-election. , rowspan=3 nowrap , Jan 3, 1945 –
Jan 3, 1951 , rowspan=3 , Democratic , rowspan=3 align=right ,
Francis Myers ! rowspan=3 , 21 , - style="height:2em" ! rowspan=6 , 26 , rowspan=6 align=left ,
Edward Martin , rowspan=6 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=6 nowrap , Jan 3, 1947 –
Jan 3, 1959 , rowspan=3 , Elected in 1946. , rowspan=3 , 28 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 28 , rowspan=3 , Elected in 1950.Lost re-election. , rowspan=3 nowrap , Jan 3, 1951 –
Jan 3, 1957 , rowspan=3 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=3 align=right ,
James H. Duff James Henderson Duff (January 21, 1883 – December 20, 1969) was an American lawyer and politician. A member of the Republican Party, he served as United States Senator from Pennsylvania from 1951 to 1957. Previously he had served as the 34 ...
! rowspan=3 , 22 , - style="height:2em" , rowspan=3 , Re-elected in 1952.Retired. , rowspan=3 , 29 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 29 , rowspan=3 , Elected in 1956. , rowspan=6 nowrap , Jan 3, 1957 –
Jan 3, 1969 , rowspan=6 , Democratic , rowspan=6 align=right ,
Joseph S. Clark Jr. Joseph Sill Clark Jr. (October 21, 1901January 12, 1990) was an American writer, lawyer and politician. A member of the Democratic Party, he served as the 90th Mayor of Philadelphia from 1952 to 1956 and as a United States Senator from Pennsylvan ...
! rowspan=6 , 23 , - style="height:2em" ! rowspan=9 , 27 , rowspan=9 align=left ,
Hugh Scott Hugh Doggett Scott Jr. (November 11, 1900 – July 21, 1994) was an American politician. A member of the Republican Party, he represented Pennsylvania in the U.S. House of Representatives from 1947 to 1959 and in the U.S. Senate, from 195 ...
, rowspan=9 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=9 nowrap , Jan 3, 1959 –
Jan 3, 1977 , rowspan=3 , Elected in 1958. , rowspan=3 , 30 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 30 , rowspan=3 , Re-elected in 1962.Lost re-election. , - style="height:2em" , rowspan=3 , Re-elected in 1964. , rowspan=3 , 31 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 31 , rowspan=3 , Elected in 1968. , rowspan=6 nowrap , Jan 3, 1969 –
Jan 3, 1981 , rowspan=6 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=6 align=right ,
Richard Schweiker Richard Schultz Schweiker (June 1, 1926 – July 31, 2015) was an American businessman and politician. A member of the Republican Party, he served as the 14th U.S. Secretary of Health and Human Services under President Ronald Reagan from 198 ...
! rowspan=6 , 24 , - style="height:2em" , rowspan=3 , Re-elected in 1970.Retired. , rowspan=3 , 32 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 32 , rowspan=3 , Re-elected in 1974.Retired. , - style="height:2em" ! rowspan=8 , 28 , rowspan=8 align=left ,
John Heinz Henry John Heinz III (October 23, 1938 – April 4, 1991) was an American businessman and Republican politician from Pennsylvania. Heinz represented the Pittsburgh suburbs in the United States House of Representatives from 1971 to 1977 and ...
, rowspan=8 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=8 nowrap , Jan 3, 1977 –
Apr 4, 1991 , rowspan=3 , Elected in 1976. , rowspan=3 , 33 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 33 , rowspan=3 , Elected in 1980. , rowspan=18 nowrap , Jan 3, 1981 –
Jan 3, 2011 , rowspan=17 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=18 align=right ,
Arlen Specter Arlen Specter (February 12, 1930 – October 14, 2012) was an American lawyer, author and politician who served as a United States Senator from Pennsylvania from 1981 to 2011. Specter was a Democrat from 1951 to 1965, then a Republican fr ...
! rowspan=18 , 25 , - style="height:2em" , rowspan=3 , Re-elected in 1982. , rowspan=3 , 34 , , - style="height:2em" , , - style="height:2em" , , rowspan=5 , 34 , rowspan=5 , Re-elected in 1986. , - style="height:2em" , rowspan=2 , Re-elected in 1988.Died. , rowspan=5 , 35 , , - style="height:2em" , rowspan=3 , - style="height:2em" , colspan=3 , ''Vacant'' , nowrap , Apr 4, 1991 –
May 9, 1991 ,   , - style="height:2em" ! rowspan=2 , 29 , rowspan=2 align=left ,
Harris Wofford Harris Llewellyn Wofford Jr. (April 9, 1926 – January 21, 2019) was an American attorney, civil rights activist, and Democratic Party politician who represented Pennsylvania in the United States Senate from 1991 to 1995. A noted advocate of na ...
, rowspan=2 , Democratic , rowspan=2 nowrap , May 9, 1991 –
Jan 3, 1995 , rowspan=2 , Appointed to continue Heinz's term. Elected to finish Heinz's term.Lost re-election. , - style="height:2em" , , rowspan=3 , 35 , rowspan=3 , Re-elected in 1992. , - style="height:2em" ! rowspan=6 , 30 , rowspan=6 align=left ,
Rick Santorum Richard John Santorum ( ; born May 10, 1958) is an American politician, attorney, and political commentator. A member of the Republican Party, he served as a United States Senator from Pennsylvania from 1995 to 2007 and was the Senate's third ...
, rowspan=6 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=6 nowrap , Jan 3, 1995 –
Jan 3, 2007 , rowspan=3 , Elected in 1994. , rowspan=3 , 36 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 36 , rowspan=3 , Re-elected in 1998. , - style="height:2em" , rowspan=3 , Re-elected in 2000.Lost re-election. , rowspan=3 , 37 , , - style="height:2em" , , - style="height:2em" , , rowspan=4 , 37 , rowspan=4 , Re-elected in 2004.Changed parties Apr 28, 2009.Lost renomination. , - style="height:2em" ! rowspan=10 , 31 , rowspan=10 align=left ,
Bob Casey Jr. Robert Patrick Casey Jr. (born April 13, 1960) is an American lawyer and politician serving as the senior United States senator from Pennsylvania, a seat he has held since 2007. A member of the Democratic Party, Casey previously served as Penn ...
, rowspan=10 , Democratic , rowspan=10 nowrap , Jan 3, 2007 –
Present , rowspan=4 , Elected in 2006. , rowspan=4 , 38 , , - style="height:2em" , rowspan=2 , - style="height:2em" , , Democratic , - style="height:2em" , , rowspan=3 , 38 , rowspan=3 , Elected in 2010. , rowspan=6 nowrap , Jan 3, 2011 –
Present , rowspan=6 ,
Republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...
, rowspan=6 align=right ,
Pat Toomey Patrick Joseph Toomey Jr. (born November 17, 1961) is an American businessman and politician serving as the junior United States senator for Pennsylvania since 2011. A member of the Republican Party, he served three terms as the U.S. representa ...
! rowspan=6 , 26 , - style="height:2em" , rowspan=3 , Re-elected in 2012. , rowspan=3 , 39 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 39 , rowspan=3 , Re-elected in 2016.Retiring at end of term. , - style="height:2em" , rowspan=3 , Re-elected in 2018. , rowspan=3 , 40 , , - style="height:2em" , , - style="height:2em" , , rowspan=3 , 40 , rowspan=3 , Elected in 2022. , rowspan=3 nowrap , ''Taking office
Jan 3, 2023'' , rowspan=3 , Democratic , rowspan=3 align=right ,
John Fetterman John Karl Fetterman (born August 15, 1969) is an American politician who is the United States senator-elect from Pennsylvania. A member of the Democratic Party, he has also served as the 34th lieutenant governor of Pennsylvania since 2019. Fe ...
! rowspan=3 , 27 , - style="height:2em" , rowspan=3 colspan=5 , To be determined in the 2024 election. , rowspan=3, 41 , , - style="height:2em" , , - style="height:2em" , , 41 , colspan=5 , To be determined in the 2028 election.


Living former senators

, there is one living former U.S. senator from Pennsylvania. The most recent senator to die was
Harris Wofford Harris Llewellyn Wofford Jr. (April 9, 1926 – January 21, 2019) was an American attorney, civil rights activist, and Democratic Party politician who represented Pennsylvania in the United States Senate from 1991 to 1995. A noted advocate of na ...
(served 1991–1995) on January 21, 2019. The most recently serving senator to die was
Arlen Specter Arlen Specter (February 12, 1930 – October 14, 2012) was an American lawyer, author and politician who served as a United States Senator from Pennsylvania from 1981 to 2011. Specter was a Democrat from 1951 to 1965, then a Republican fr ...
(served 1981–2011) on October 14, 2012.


Superlatives


Longest service


Shortest service


Youngest at beginning of service


Oldest at end of service


Notes


References

*


See also

* List of United States representatives from Pennsylvania * List of United States Senate elections in Pennsylvania * United States congressional delegations from Pennsylvania


External links


Members of Congress from Pennsylvania
govtrack.us
U.S. Senate members from Pennsylvania
civil.services {{PA-FedRep
United States Senators The United States Senate is the upper chamber of the United States Congress, with the House of Representatives being the lower chamber. Together they compose the national bicameral legislature of the United States. The composition and powe ...
Pennsylvania Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, ...